Tabulator for type-writing machines.



W. E. MARK. TABULATOR FOR TYPE WRITING MACHINES.

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` Patented Jan. 11,1910.

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1 APPLICATION H LED MAY 29, 1909.

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" UNITED sTATEsPATENT OFFICE.

, To all whom it may concern:

WILLIAM E. MARK, OF WOODHULL, ILLINOIS, ASSIGNOR TO THE OLIVERTYPEWRITER COMPANY, CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TABULATOR FOR TYPE-WRITING- MACHINES.

Be it known that I, VILLIAM E. MARK, a citizen of the United States, anda resident of IVoodhull, inthe county of Henry and State of Illinois,have invented certain new and useful Improvements in Tabulators for'Iype-Vriting Machines; and I, VILLIAM E.

ulating or column-stop mechanism :t'or typewriting machines by means ofwhich the carriage is released from the control of the usualletter-spacing mechanism to permit of its movementunder the force of itsactuating spring to a predetermined point or points where its movementis'arrested for the purpose of printing items or numbers in `one or morevertical columns.

The invention relates particularly to the manner in which thestop-members are mounted on the carriage or the :trame of the machine,and to an improved mechanism by which. the stop-members, adjusted forcol umns of certain widths, may be readily re` placed by a similarmechanism having other stop-members adpisted in columns of other widths.v

Prior to myinvention, 1t has been usual to adjustably secure thestop-members to a liXed bar on the machine, but where a great varietyot' work is done as, for example, in large offices requiring tabulating1n columns of different widths, the readJustment of these stopanembers,when it is desired to change the spacing of the columns, is tediousandconsumes considerable time.

In carrying out my invention I provide a removable bar upon which thestop-members are adjustably mounted, which bar` may be readily attachedto, or withdrawn from, the machine. I also provide a latchingmember atone end of the bar by means of which .it may be locked in position orunlocked when it isto be removed. By using this de- `vice it is possibleto provide a number of bars in advance, each with the stop-ineinbersthereon adjusted to suit different classes of work. Thus, when theoperator desires to tabulate in a different way, he simply removes thebar already in the machine and replaces it by one with the stopmembersad- Specication of Letters Patent.

Application filed May 29, 1909.

Patented Jan. 11, 1910.

Serial No. 499,081.

justed thereon for the desired spacing of the columns.

In illustrating and describing my invention I have shown it as appliedto a typewriting machine of the kind known'as the Oliver, but it willbe' apparent that it may, with equal readiness, be applied to othermachines. I have also shown the same general arrangement andconstruction of the shift-frame and the key-actuating stop forcontrolling` the tabulating mechanism as that shown and described inLetters Patent No. 916,720, granted March 30th, 1909, to T. L. Knapp andC. C. I-Iarting, with my removable stop-bar mounted on the frame of thepaper-carriage.

In the drawings :HFigure 1 shows a vertical section througlrtheshift-frame and papercarriage of a typewriting machine. Figy2 shows afront elevation of the papercarriage. Fig. 3 is a horizontal sectionthrough the paper-carriage along the line 3 3 of Fig. 1. Fig. 4 is afront elevation of my improved removable stop-bar, `showing' thestop-members thereon in onev position. Fig. 5 is a similar view showingthe `stopmembers adjusted Vthereon in another `position. Figs; 6, 7 and8 are all detail sections through Fig. 2, on the lines respectivelyindicated by the numerals 6, 7 and 8.

1 represents the shift-frame; 2 the papercarriage comprisino` the endplates 3, 4, and the front and rear bars 5 and 6; 7 the platen and 8 and9 the rods supported by the shift'- frame upon which the paper-carriagerides. 10 is a rack on the front of the bar 5 engaged by a pinion 11operated by the escape gear 11EL which provides for the usualletter-spacing. `12 "is the key-actuated stop constructed to moveupwardly to engage the stop-member, the said stop being limited in itsupward movement by means of a block 13 secured to a bracket 111 which isattached to the shift-frame 1. The lever 15, at the end of which thestop 12 is formed, is pivoted on a pin 15n projecting from the bracket111. The stop 12 is actuated by a key 16 at the end of a lever 16'Lwhich is also pivoted on the pin 15a. The lever 16d is provided with anupwardly projecting arm 17 which, through the link 18, disengages thepinion 11 from the rack 10 when the stop 12 is raised into its operativeposition. These parts are all as described in the Letters Patent abovereferred to, that is to say, Patent No. 916,720 and need no furtherdescription here as they form no part l the bar 5 when the stop-bar isin position.

of my invention. Their operation and oonstruction are apparent from aninspection of Fig. 1. It is to be understood, of course, that myinvention may be applied to typewriters in which other mechanism is usedto operate the stop and I have simply selected this particular type ofmachine as readily illustrating my invention.

The front bar 5 of the paper-carriage has a downwardly extending flange19, bifurcated throughout its length to form a groove 20, preferablyrectangular in section and open at each end (see Figs. 1 and 8). lVithinthis groove is located the stop-bar 21. The stop-bar 21 consists of aflat bar provided on its front face with a shoulder 22 along its upperedge and another shoulder 23 running parallel to the first shoulder anda short distance below it. These shoulders form a long groove 24Lextending the length of the bar.

24, 24 represent short pins of such a diameter that they may ride easilyin the groove 24a of the stop-bar 21. Said pins are secured in the frontbifurcation of the flange 19 with their inner ends projecting into thevgroove 24"1 of the stop-bar. As illustrated. two of the pins 24 areshown, one near each end of the slot'or groove 20, and they serve as asupport for the bar 21 and also as a guide. Below the shoulderv 23 ofthe bar 21, and extending the length of the bar, are located a series ofholes 25 which serve as a means for attaching and adjusting the positionof the stop-members. The holes are preferably located adistance betweencenters equal to double the pitch of the teeth on the rack-bar 10. Y

26 indicates the stop-members which consist of blocks each provided witha screwthreaded hole to receive a screw by means of which they aresecured on t-he face of the stop-bar. To provide for adjustment at everyletter-space each stop-block or member is made of the length of three ofsaid spaces or three times the pitch of the rack-teeth with thescrew-threaded hole located onethird of the distance from'one end. Thiscauses one end of the stop-block or member when secured to the bar toregister with the center of the hole on one side of the one by means ofwhich it is secured, while the other edge falls half way between thelatter hole and the adjacent hole at its other side. As the holes are adistance apart equal to double the pitch of the teeth ofthe rack 10, itis readily apparent that provision is thus made to bring one edge of thestop-block or member to correspond with any particular tooth on the faceof the rack-bar. The stop-members abut at their top edges against thelower side of the shoulder 23 and project beyond the face of thestop-bar so as to come out flush with the front face of the flange 19 onThe stop 12 actuated by the key 1G is operated to engage the stop-member26 just as in the patent hereinbefore referred to.

To lock the bar in place I provide a notch 2T near one end of the frontface of the flange 19, preferably as illustrated, at the right-hand end.This notch is adapted to be engaged by a latch or detent 28 pivotallyattached near the end of the stop-bar 21. Said latch has a handle 30which projects beyond the end of the bar to permit of its readyoperation. In order that the latch may remain in either its closed oropen position desired, it is preferably pivoted to the stop-bar in thefollowing manner (Fig.

G). 31 represents a rivet whichy passes through the stop-bar and isriveted against lthe front face of the latch 28 at 33. In order toprovide friction between the engaging faces of the latch and stop-bar, adishshaped washer 34 is interposed between t-he head 32 of the rivet 31and the rear face of the stop-bar. lVhe/n the rivet is drawn up theelasticity of the washer permits the latch 28 to be operated but takesup any wear between the engaging faces of the latch and bar 21, and thusmaintains the necessary friction to prevent the latch from becomingloose.- It is of course to be understood that other ways of providingsufficient friction between the engaging faces of the latch and stop-barmay be used, but I prefer this one as the simplest.

From the above description the advantages of my improved removablestop-bar are apparent. The stop-membersV on one bar may be adjusted toaccommodate columns of one width as, for example, shown in Fig. 4, whilethose of another bar may be adjusted to accommodate columns of anentirely different width as shown in Fig. 5. By providing a number ofsuch bars it is apparent how the work of an office in which a great dealof tabulating is done may be economized and time saved.

I claim as my invention 1. In a typewriting machine, in combination withthe machine frame, the paper-carriage, the letter-spacing mechanism, thetabnlating-key, the key-operated stop act-uated thereby, and means forreleasing the carriage from the letter-spacing mechanism actuated bysaid tabulating-key, a stop-bar slidably mounted in the frame of thepapercarriage and removable in an endwise direction therefrom, stop-members adjustably mounted on said stop-bar, and means for locking saidstop-bar in position.

2. In a typewriting machine, in combination with the machine-frame, thepaper-carriagey provided withv a rack-bar, the letterspacing mechanism,the tabulating key, the key operated stop actuated thereby, and meansfor releasing the carriage from the spacing mechanism, the tabulatingkey, the

key-operated stop actuated thereby, and means for releasing the carriagefrom the letter-spacing mechanism actuated by said tabulating key, abifurcated flange formed on said rack-bar and extending the lengththereof, said bifurcations being separated by a groove, pins secured toone of said bifurcations projecting into said groove, a stop bar havinga groove formed on the face thereof adapted to slide in the groove ofsaidbifurcated flange in engagement with the said pins, stop-membersadjustably `mounted on said bar, and means for locking said bar in saidgroove of the paper-carriage.

4. In a typewriting machine, in combina tion With the machine-frame, thepaper-carriage provided with a rack-bar, the letterspacing mechanism,the tabulating key, the keyoperated stop actuated thereby, and means forreleasing the carriage from the `letter-spacing mechanism actuated bysaid tabulating key, a bifurcated flange formed on said rack-bar belowthe teeth thereof, said bifurcations being separated by a groove, pinssecured to one of said bifurcations and projecting into said groove, astop-bar having a groove on the face thereof adapted to slide in thegroove of said bifurcated flange in engagement with said pins,stop-members adjustably mounted on said stop-bar, and a latch.pivot-ally mounted at one end of said stop-bar adapted to lock the samein position.

5. A removable stop-bar for typewriting machines comprising a flat bar,shoulders formed on the face of said bar extending the length thereof toform a groove, stop-members adjustably secured on the face of said bar,and a pivoted latch secured at one end thereof.

6. A removable stop-bar for typeWriting machines comprising a flat bar,shoulders formed on the face of said bar extending the length thereof toform a groove, a series of holes spaced at equal distances apart formedin said bar, stop-members adapted to be removably secured against theface of said stop-bar With one edge in engagement With one of saidshoulders, said stop-members being of a length equal to one and a halftimes the spacing of the holes in said stopbar and themselves havingholes a third Way of their length to correspond With the holes in saidstop-bar, means for securing said stop-members in place, and a latchpivotally connected to one end of said bar having aA handle projectingbeyond the same.

In testimony, that I claim the foregoing as my invention I affix mysignature in the presence of two Witnesses,l this 24 day of May, A. I).1909.

TWILLIAM E. MARK.

litnesses HENRY C. STICKNEY. Anios A. MACKEY.

